Take ownership of folder 'C:\Program Files\WindowsApps'.

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Give your windows user account and account 'ALL APPLICATION PACKAGES' full security permissions to folder 'C:\Program Files\WindowsApps'.

Choose own pc name to add account

Run powershell as administrator

type: Set-ExecutionPolicy Unrestricted

press enter

Reinstall all apps:

type: Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml”}

press enter

Remove the security permissions for your userid from 'C:\Program Files\WindowsApps'.

Give ownership of folder 'C:\Programs Files\WindowsApps' back to 'NT SERVICE\TrustedInstaller'.